--- configure.orig	2011-05-30 17:11:26.000000000 +0200
+++ configure	2011-06-06 10:01:12.000000000 +0200
@@ -1920,7 +1920,7 @@
         cat $ODIR.tmp_src.cc >> $LOG
         echo "using the following command line:" >> $LOG
         echo "$CXX -O -Wall -o $ODIR.tmp_out $ODIR.tmp_src.cc -I$p/include/$d $p/$b/lib$d.so" >> $LOG
-        $CXX -O -Wall -o $ODIR.tmp_out $ODIR.tmp_src.cc -I$p/include/$d $p/$b/lib$d.so >> $LOG 2>&1
+        $CXX -O -Wall -o $ODIR.tmp_out $ODIR.tmp_src.cc -I$p/include/$d $p/$b/lib$d.so -pthread >> $LOG 2>&1
         if [ $? -eq 0 ]; then
           found=1
           break